VulnerabilityModified
CVE-2021-21806
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64.
HIGH 8.8EPSS 2.83%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An exploitable use-after-free vulnerability exists in WebKitGTK browser version 2.30.3 x64. A specially crafted HTML web page can cause a use-after-free condition, resulting in remote code execution. The victim needs to visit a malicious web site to trigger the vulnerability.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 2.83% probability · 86th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- webkitgtk/webkitgtk
- Source
- talos-cna@cisco.com
References
- http://www.openwall.com/lists/oss-security/2021/07/23/1Mailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1214Exploit, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/07/23/1Mailing List, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2020-1214Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.